I carved out the Iron Man head/lid and added a transparent tinted window on the face. Sanded down a Batman Clown mask and glued it on the front of the Hulkbuster body. Added some gun turrets on the gauntlets. Hoses from a pre-Marvel Legends vault figure and a back pack from a Mr Freeze figure. Sorry, only pic left. This was inspired by Punishers one-sided fight with Sentry, so I felt he should have an ace up his sleeve.